Drying apparatus



2 Sheets-Sheet 1 2 a M m W 0 M J z W m M 4 w w m #1 w z a A Z 5 W aw? .sA a Q V Oct. 20, 1925.

Filed Nov. 6, 1924 D. V. SHERBAN DRYING APPARATUS Oct. 20, 1925.

1924 2 Sheets-Sheet 2 Filed Nov.

Patented Oct. 20, 1925.

1 UNITED STATES DANIEL V. SHERIBAN, OF CANTON, OHIO,

ASSIGNOB T THE-BONNOT COMPANY, OF

CANTON, OHIO, A CORPORATION OF OHIO.

DRYING APPARATUS.

Application filed November 6, 1924 Serial No. 748,059.

To all whom it may concem:

Be it known that I, DANIEL V. SHERBAN, a citizen of the United States,residing at Canton, in the county of Stark and State of 6 Ohio, haveinvented certain new and useful Improvements in Drying Apparatus, ofwhich the following-is aspecification.

This invention relates to ap aratus for drying wet coal and othermaterials, and the 1 objects of the improvement are to provide a dryingapparatus through which the coal-1s continuously passed and agitated asby centrifugal action, hot ases being passed through the body of tiematerial as it is 1 agitated to remove the moisture therefrom, the coalbeing continuously discharged from the apparatus as it is dried.

The above and other objects may be attained by providing a receivinghopper pro- 2 vided with a frusto-conical bottom portion, beneath whichis located a plurality oi spaced ring plates arranged in echelon, arotatable, hollow cylinder being concentrically located beneath thehopper and provided 2 with a series of conical plates extending outwardtoward the ring plates, a hot gas inlet communicating with saidcylinder, a multiplicity of apertures being provided in the cylinderbetween the conical plates, a gas outlet being provided above the ringplates whereby the rotation of the hollow cylinder and conical platesthereon causes a centrifugal agitation of the wet coal, as it passesdownward from the hopper, the hot gases being drawn ofl through theapertures of the hollow cylinder between the conical plates and outwardbetween the ring plates, passing through the coal as'it is agitated,producing a quick and even drying of the coal.

An embodiment of the invention is illustrated in the accompanyingdrawings, in

Fig. 1 is a vertical, sectional view through is also provided with thefrusto-conical bottom portion 5 terminating in the annular dischargemouth 6.

A series of ring plates 7 is located within the housing 4 beneath thedischarge mouth of the hopper, these plates increasing uniformly indiameter from top to bottom and being arranged in echelon, any suitablemeans being provided for mounting the ring plates in stationarycondition.

The hot gas cylinder 8 extends concentrically through the ring platesinto the mouth of the hopper, being preferably provided with the closedconical to 9.

The enlarged gas cham er 10 is formed at the lower end of the cylinder 8and preferably provided with the frusto conical portion 11. Theannularflange 12 is provided upon the bottom of the gas chamber 10 andrests upon the anti-friction rollers 13, supported in brackets 14mounted u on the platform 15, which may be snpporte at any desiredheight above the floor, as by the up rights 16 upon which the housing 4is also mounted.

A large gear 17 may be provided upon the under side of the gas chamber10 and in engagement with the pinion 18 mounted upon the drive shaft 19,which may be ro tated by, connection of the drive pulley 20 with anysuitable source of power.

A .pipe 21, which may lead from the outlet flue of a boiler or similarsource of hot gases, is extended into the lower end of the gas chamber10, and for the purpose of preventing condensation of the moisture inthe gases which have passed through the coal, a byass 22 communicateswith the pipe 21 andPwith an annular chamber 23 around the lower.portion of the feed hopper, said annular chamber having an opening atthe opposite side indicated at 24, adjacent to the gas outlet 25, towhich a fan or other means may be provided for drawing the gases fromthe housing 4.

A plurality of conical plates 26 are provided around the hot gascylinder 8, a multiplicity of apertures 27 being formed in the gascylinder between said plates.

For the purpose of adjustin the device to contact coal or other materiahavin various degrees of moisture, an annular p etc 28 is adjustablymounted at the lower or discharge end of the housing 4 and arranged tobe fixed at any desired height above the flange 12, b means of theweighted cables 29 and the ocking screws 30.

It will be seen that by raising the plate 28, the coal may pass more(Luickly through the drying apparatus, while lowering e plate thedischarge outlet is c oked, causlng the coal to remain a reater len thof time in the area through which the ot gases are passing.

The operation of the device is obvious; the moist coal, as indicated atC, or other material to be dried, is placed in the receiving hopper 1and the hot gas cylinder 8 is rotated as above described, the rotationof the conical plates continually agitating the coal and causing it tofind its way downward between the ring plates, preventing theaccumulation of any masses of coal at any particular point.

This agitation also serves to keep the articles of the coal loosened, soas to permit the passing of the hot gases through the descending tubularcolumn of the coal, as said gases are drawn from the gas cylinderbetween the conical plates and ring plates and through the agitatedcolumn of coal.

The hot gas from the by-pass 22 is continually passing around the lowerportion of the hopper, heating the contents thereof and not onlyassisting in drying the coal, but also preventing the condensation ofmoisture in the gases which have passed upward through the coal andwhich would otherwise drop downward into the coal as it passes betweenthe conical plates and ring plates.

I claim 1. A drying apparatus including a receiving hopper, spaced ringplates beneath said hopper, a series of conical plates spaced from thering plates, means for rotating the conical plates and means for passinghot gases between the conical plates and ring plates.

2. A drying apparatus including a receiving hopper, spaced ring platesbeneath said hopper, a series of conical plates spaced from the ringplates, means for rotating the conical plates, and means for passing hotgases around the lower portion of the hopper.

3. A drying apparatus including a receiving hopper, spaced ring platesbeneath said hopper, a seriesof conical plates spaced from 4. A dryingapparatus including a recciv-' ing hopper, spaced rin plates beneathsaid hopper, a hollow per oratcd gas cylinder concentrically mountedwithin the ring plates, conical plates carried by the cylinder, at hotgas inlet communicating with the as cylinder and means for rotating thecylin er.

5. A drying apparatus including a receiving hopper, spaced ring platesbeneath said hopper, a hollow perforated gas cylinder concentricallymounted within the ring plates, conical plates carried b the cylinder, ahot gas inlet communicating with the gas cylinder, means for rotatingthe cylinder, a casing surrounding the ring plates and a gas outlet insaid casing.

6. A drying apparatus including a receiving hopper, spaced rin platesbeneath said hopper, a hollow perorated gas cylinder concentricallymounted within the ring plates, conical plates carried by the cylinder,a hot gas inlet communicating wit-h the gas cylinder, means for rotatingthe cylinder, a casing surrounding the plates and a dis tributing disccarried by the gas cylinder and spaced from the lower end of said cas-7. A drying apparatus including a receiving hopper, spaced ring platesbeneath said hopper, a hollow perforated gas cylinder concentricallymounted within the ring plates, conical plates carried by the cylinder,a hot gas inlet communicating with the gas cylinder, means for rotatingthe cylinder, a casing surrounding the plates, a distributin 0 disccarried by the gas cylinder and spaced from the lower end of saidcasing, and means for changing the distance between the casing and disc.

In testimony that I claim the above, I have hereunto subscribed my name.

DANIEL V. SHERBAN.

